Ships same dayWeekday orders before 2 PM ET Pick up in Williamstown, NJCall ahead. Mon to Fri 8 to 5, Sat 8 to noon Try a sample firstSmall bags of the real sand, shipped to you Call 24/7: (856) 418-4895Every call answered, missed calls returned
DAP  |  SKU: DAP-FLR-LVL

DAP Concrete Floor Leveler 25 lb Bag, Gray, Portland Cement Underlayment

$49.99

Ships same day on weekday orders placed before the 14:00 ET cut-off.

Typically 1 to 5 business days by UPS, FedEx Ground or USPS. Enter your ZIP for your dates.

Request a pallet quoteHow much do I need?Call (856) 418-4895

Ships fromWilliamstown, NJ (our warehouse)Sold byPolymeric Sand StorePaymentSecure checkout by ShopifyReturnsSee our return policy
Brand
DAP
Type
Concrete Repair

About this item

  • Leveling rough and uneven surfaces before finished flooring goes down.
  • Preparing subfloors for tile, wood, vinyl sheet, vinyl tile and carpet.
  • Patios, sidewalks, garages, steps and curbs, since it works outdoors as well as in.
  • Concrete, masonry and wood subfloors, interior or exterior.
See the full description and data sheets

Shipping, pick-up and returns

Orders ship from Williamstown, New Jersey by UPS, FedEx Ground or USPS; weekday orders placed before 2 PM Eastern go out the same day. Warehouse pick-ups (call first so we can pull your order) and drop-off returns Monday to Friday 8 to 5, Saturday 8 to noon.

Return and refund policy · Shipping policy

DAP Concrete Floor Leveler 25 lb Bag, Gray, Portland Cement Underlayment Add to cart
  • BasePortland cement
  • Coverage25 sq ft per 25 lb bag at 1/8 inch
  • Ships same dayWeekday orders before 2 PM Eastern
  • Real humans(856) 418-4895, any hour

Why DAP Concrete Floor Leveler?

You Also Need the Bonding Liquid, and You Need the Gallon

DAP specifies 2.5 to 3 quarts of Bonding Liquid for a 25 lb bag (its Floor Leveler data sheet says 2.5 quarts, its newer Bonding Liquid data sheet says 3 quarts, so plan on 3). That is more than a pint and less than a gallon, so the gallon is the size that pairs with this bag. Buying the pint alongside it would leave you well short of a single mix.

Full description and specs
  • Base - DAP Concrete Floor Leveler 25 lb Bag, Gray, Portland Cement Underlayment

    Base

    Portland cement

  • Set time - DAP Concrete Floor Leveler 25 lb Bag, Gray, Portland Cement Underlayment

    Set time

    3 to 4 hours

  • Coverage - DAP Concrete Floor Leveler 25 lb Bag, Gray, Portland Cement Underlayment

    Coverage

    25 sq ft per 25 lb bag at 1/8 inch

  • Working time - DAP Concrete Floor Leveler 25 lb Bag, Gray, Portland Cement Underlayment

    Working time

    45 minutes

How to Get a Flat Result

The short version. Always follow the DAP data sheet.

  1. Step 1: Clean the substrate properly - DAP Concrete Floor Leveler 25 lb Bag, Gray, Portland Cement Underlayment

    Clean the substrate properly

    Anything loose, oily or dusty will show up as a debond later.

  2. Step 2: Mix powder into the Bonding Liquid, not the other way - DAP Concrete Floor Leveler 25 lb Bag, Gray, Portland Cement Underlayment

    Mix powder into the Bonding Liquid, not the other way

  3. Step 3: Work in manageable areas - DAP Concrete Floor Leveler 25 lb Bag, Gray, Portland Cement Underlayment

    Work in manageable areas

    Forty five minutes goes quickly across a large floor.

  4. Step 4: Build up to depth in passes rather than exceeding an inch - DAP Concrete Floor Leveler 25 lb Bag, Gray, Portland Cement Underlayment

    Build up to depth in passes rather than exceeding an inch

  5. Step 5: Give it 24 hours before you walk on it or lay a floor - DAP Concrete Floor Leveler 25 lb Bag, Gray, Portland Cement Underlayment

    Give it 24 hours before you walk on it or lay a floor

Watch installation videosTechnical data sheet (PDF)DAP PDF, opens in a new tab

Apply at 40 F. Test a small area first.

Description
Read This First: It Does Not Mix With Water
DAP Concrete Floor Leveler is a portland cement based dry powder underlayment that levels rough and uneven surfaces. The one thing to know before you order is that it is half a system. DAP specifies mixing it with DAP Bonding Liquid and Floor Leveler Additive, and water is never given as an option anywhere in their literature. A bag on its own is not usable.
25 sq ft
Per bag at 1/8 in
1/8 to 1 in
Thickness range
45 min
Working time
3 to 4 hrs
Set time

You Also Need the Bonding Liquid, and You Need the Gallon

DAP specifies 2.5 to 3 quarts of Bonding Liquid for a 25 lb bag (its Floor Leveler data sheet says 2.5 quarts, its newer Bonding Liquid data sheet says 3 quarts, so plan on 3). That is more than a pint and less than a gallon, so the gallon is the size that pairs with this bag. Buying the pint alongside it would leave you well short of a single mix. We would rather say that here than have it discovered on the floor with a bag already open.

This 25 lb bag needs 2.5 to 3 quarts of DAP Bonding Liquid and Floor Leveler Additive
So buy The 1 gallon size, which covers this bag with 1 to 1.5 quarts spare
Do not buy The 1 pint size for this bag. DAP’s Bonding Liquid data sheet gives 1 pint per 4 lb of powder, so a pint is for small jobs, not the 25 lb.

What It Is For

  • Leveling rough and uneven surfaces before finished flooring goes down.
  • Preparing subfloors for tile, wood, vinyl sheet, vinyl tile and carpet.
  • Patios, sidewalks, garages, steps and curbs, since it works outdoors as well as in.
  • Concrete, masonry and wood subfloors, interior or exterior.

Specifications

Manufacturer name DAP Concrete Floor Leveler, Dry Mix
DAP item number 10416 for the 25 lb bag
Base Portland cement
Coverage 25 sq ft per 25 lb bag at 1/8 inch
Thickness 1/8 inch minimum, 1 inch maximum total
Mixing ratio 2.5 to 3 quarts of DAP Bonding Liquid per 25 lb bag (DAP’s two data sheets differ)
Working time 45 minutes
Set time 3 to 4 hours
Before floor covering 24 hours
Full cure 28 days
Minimum application temperature 40 F
VOC 0 g/L
Color Gray
Compressive strength Not published by DAP

Limitations DAP States

  • Not for repairs over 1 inch total thickness.
  • Do not mix more than you can use in 45 minutes.
  • Do not use the mix once it has started to set. Retempering a setting cement mix ruins it.

How to Get a Flat Result

  • Clean the substrate properly. Anything loose, oily or dusty will show up as a debond later.
  • Mix powder into the Bonding Liquid, not the other way around, and mix to a lump free consistency.
  • Work in manageable areas. Forty five minutes goes quickly across a large floor.
  • Build up to depth in passes rather than exceeding an inch in one go.
  • Give it 24 hours before you walk on it or lay a floor covering, and remember full cure is 28 days.
Working Out How Much You Need?
Tell us the area and how far out of level it runs and we will work out the bags and the Bonding Liquid together. Call (856) 418-4895 or email info@polymericsandstore.com.
Technical Documents
Documents open from the manufacturer, so you always get the current revision. Every sheet we carry is also listed on our TDS and SDS library.

Data sheets

The manufacturer's technical data sheet (coverage, joint width, cure and rain-safe times) and safety data sheet are collected in the TDS and SDS library. Every figure on this page comes from those sheets.

Payment & Security

Payment methods

  • Amazon
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Questions about this product

Ask a question ›
When will it ship?
In-stock orders placed before 2:00 PM Eastern on a weekday ship the same day from our Williamstown, New Jersey warehouse by UPS or FedEx Ground. The cut-off is when the carriers start arriving; order after it, or on a weekend, and it ships the next business day. Just missed it? Call (856) 418-4895: if the carrier has not picked up yet we do our best to get it out the same day. The box above the Add to cart button shows the live countdown and an arrival estimate for your ZIP. Phones are answered 24/7; the warehouse itself is open for pick-ups and returns Monday to Friday 8 to 5 and Saturday 8 to noon, Eastern. For a pick-up, call first so we can pull your order.
Can I buy by the pallet?
Yes. Full pallets ship by freight truck, so we price the delivery for your address instead of guessing. Request a pallet quote or call (856) 418-4895 and we will call you back with a delivered price.
Where are the technical and safety data sheets?
The manufacturers' technical and safety data sheets are collected in the TDS and SDS library. Coverage, cure time and application temperatures on this page come from those sheets.
Is contractor or bulk pricing available?
No. One price for everyone: the price on the page is what contractors, landscapers and homeowners all pay. For full pallets, request a pallet quote and we will price the freight to your address.

How to repair concrete cracks

Step by step, start to finish. Click to play.